20402413323 has 8 divisors (see below), whose sum is σ = 27204276288. Its totient is φ = 13601079624.

The previous prime is 20402413301. The next prime is 20402413379. The reversal of 20402413323 is 32331420402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20402413323 - 2¹⁰ = 20402412299 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20402413293 and 20402413302.

It is not an unprimeable number, because it can be changed into a prime (20402413523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31365 + ... + 204422.

It is an arithmetic number, because the mean of its divisors is an integer number (3400534536).

Almost surely, 2^20402413323 is an apocalyptic number.

20402413323 is a deficient number, since it is larger than the sum of its proper divisors (6801862965).

20402413323 is a wasteful number, since it uses less digits than its factorization.

20402413323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264633.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20402413323 its reverse (32331420402), we get a palindrome (52733833725).

The spelling of 20402413323 in words is "twenty billion, four hundred two million, four hundred thirteen thousand, three hundred twenty-three".